Engine : Steam Plants - 658/811
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| While trying to light off a burner on a semi-automated boiler, you note that the fuel oil solenoid valve at the burner will not stay open. Which of the following conditions could cause this problem? |
| A) The flame scanner is adjusted for excessive time delay in the ignition trial circuit. |
| B) The forced draft air supply has failed. |
| C) The fuel oil pressure at that burner is too high. |
| D) The solenoid coil is energized causing the valve to remain closed. |
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